| NHTSA Campaign Number: |
04V159000 |
| Vehicle/Equipment Make: |
MACK |
| Vehicle/Equipment Model: |
CH |
| Model Year: |
2004 |
| Manufacturer Campaign Number: |
SC0287 |
| Manufacturer Component Description: |
FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES |
| Manufacturers Involved in Recall: |
MACK TRUCKS, INC |
| Manufacturered: |
19950426 - 20040209 |
| Type of Report: |
V (Vehicle, Equipment or Tire) |
| Potential Number of Units Affected: |
317 |
| Date Owner Notified By Manufacturer: |
20040406 |
| Recall Initiated By: |
20040406 |
| Manufacturer Responsible For Recall: |
MACK TRUCKS, INC |
| Report Received Date: |
20040407 |
| Record Creation Date: |
20040410 |
| Regulation Part Number: |
|
| Federal Motor Vehicle Safety Standard Number: |
|
| Defect Summary: |
ON CERTAIN CHASSIS BUILT WITH LNG ENGINES, THE NEXGEN LNG TANK'S PRIMARY AND SECONDARY RELIEF VALVES COULD FAIL TO OPEN AND RELIEVE TANK PRESSURE. |
| Consequence Summary: |
THIS COULD CAUSE ICE BUILDUP ON THE DISCHARGE SIDE OF THE PRIMARY AND SECONDARY PRESSURE SYSTEM ALLOWING THE RELIEF SYSTEM TO FREEZE AND BECOME BLOCKED RESULTING IN OVER PRESSURIZATION OF THE LNG TANKS CREATING THE RISK OF CATASTROPHIC TANK RUPTURE WHICH COULD CAUSE SERIOUS INJURY OR DEATH. |
| Corrective Summary: |
DEALERS WILL RETROFIT THE LNG TANKS WITH A NEW PRIMARY RELIEF VALVE PIPE AWAY TUBE AND A NEW VENTILATED SHROUD. THE RECALL BEGAN APRIL 6, 2004. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MACK AT 1-610-709-3337. |
